Trivia: The name ``Explorer'' was used for Army Air Service/National Geographic stratosphere balloons in the 1930s, long before its use for satellites. Source: Origins of NASA Names, Helen T Wells, Susan H Whiteley, Carrie Karegeannes. NASA SP-4402.
Currently Reading: Superdove: How The Pigeon Took Manhattan ... And The World, Courtney Humphries. Note that this is not the story of Steve Martin's comic-stunt-performing former roommate, but rather about the ubiquitous yet unpopular birds. It's quite well-written, though, and compassionate to the pigeon viewpoint. The only really disturbing thing is the cover shows art of a pigeon mixed with a muscle-man human's chest and forearms so that it looks really much too creepy.